Well, they are nice and white. If they are alive, they should plump up now that you have them in a properly humid environment. Keep temperatures stable within 2 degrees of 88F, and wait and see.

Make sure that they are NOT in direct contact with water, but the humidity is as close to 100% as possible.

How do the eggs feel? If they have some 'give' to them, they may be alive. If they're hard/rubbery inside, they're gone.